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Science Systems Test

Which vessels carry blood to the heart? Veins
Which vessels allow exchanges between blood and body cells? Capillaries
Which vessels carry blood away from the heart? Arteries
_______ is caused by the rhythmic change in blood pressure? Pulse
What are the narrowest blood vessels? Capillaries
What is the major vein that returns blood to the heart from the body? Vena Cava
What is the largest artery? Aorta
Where does the blood go when it leaves the lungs? Back to the heart (left atrium)
Which chambers of the heart pump? Ventricles
Which side of the heart is oxygen rich? Left
Having a fatty build up in the blood vessels is called ________? Atherosclerosis
Abnormally high blood pressure is called ____________? Hypertension
Brain damage caused by damage to blood vessels is a ___________? Stroke
Death of heart muscles is a ____________? Heart attack
What is the definition of pulse? Expansion and contraction of the arterial walls
What is the definition of blood pressure? The force that blood exerts on the walls of the arteries
What gas is taken from the blood when it is pumped to the lungs? Carbon dioxide
Which blood type is a universal donor? Type O
What three things does the circulatory system do? Protect the body from diseases and germs, protect the body from bacteria and viruses, and control body temperature
Movement of blood between lungs and the heart is _________? Pulmonary circulation
What do valves do? Help the blood go in the right direction
What are cylinders a good shape to use in the circulatory system? It lets more air go at a time
What does the respiratory system do? Delivers oxygen to all cells and removes carbon dioxide and waste
What is needed to release energy in the body? Oxygen
Where does air first enter the respiratory system? Nostrils
What is the common name for the trachea? Windpipe
What is the scientific name for the voice box? Larynx
What surrounds each alveolus? Capillaries
Air is mostly composed of _________? Nitrogen
What are the balloon-like structures in the lungs called? Alveoli
What is the definition of lymphatic system? A group of organs and tissues that collects excess fluid and returns it to the blood
What does the lymphatic system help fight? Pathogens
What is the main gland of the lymphatic system? Thymus
What is the largest lymphatic organ? Spleen
Where are blood cells made? Bone marrow
What do lymph nodes do? Remove pathogens from lymph
A type of white blood cell that fights pathogens is a __________? Lymphocyte
Pathogens are destroyed by a kind of lymphocyte called a ___________? Killer T-cell
Alveolus? Any of the tiny air sacs of the lungs where oxygen and carbon dioxide are exchanged
Bronchi? One of the two tubes that connect to the lungs with the trachea
Diaphragm? A dome-shaped muscle that is attached to the lower ribs and that functions as the main muscle in resparation
Epiglottis? A flap of cartilage at the roof of the tongue which is depressed during swallowing to cover the opening of the windpipe
Larynx? The area of the throat that contains the vocal cords and produces vocal sounds
Lung? A respiratory organ in which oxygen from the air is exchanged with carbon dioxide from the blood
Nose? The main passageway into and out of the respiratory system
Trachea? The tube that connects the larynx to the lungs
Vocal cord? A pair of elastic pair or elastic bands that stretch across the larynx
Created by: 1962116900